Arc Reactor (earring size)
by GlitchTech, published
Miniature Arc Reactors for your ears! Disks are the size of a US quarter.
Print at low layer height and high infill for best results.
I used a raft to reduce any curling that may occur. I also printed with 1 shell. Play around with your print settings to figure out what prints thin walls best.
Paint (battle damage optional).
Use a drill to make the hole and attach to required gear.